MAX1583:White LED Camera-Flash Boost Converter

First 24V, White-LED, Flash/Strobe Supply for Camera Phones

The MAX1583 white LED boost converter drives up to five white LEDs with a constant current to provide camera flash/strobe in cell phones, PDAs, DSCs, and other hand-held devices. The MAX1583 includes a 24V boost converter and a high-voltage LDO current regulator for high efficiency and long battery life. Two logic inputs control four modes of operation: shutdown mode (0.5µA max), movie mode for high-efficiency continuous lighting (programmable up to 100mA), precharge mode for charging a reservoir capacitor to 24V while the LEDs are off (POK output indicates a full reservoir capacitor), and strobe mode for firing the flash during an exposure with a regulated current programmable up to 300mA. The MAX1583X, MAX1583Y, and MAX1583Z offer high, medium, and low current limits, respectively, to allow tradeoff between reservoir capacitor size and peak input current. The MAX1583 is available in a 10-pin 3mm x 3mm TDFN package (0.8mm max height).

Key Features
  • Supports Up to Five LEDs for Strobe or Flash
  • Four Operational Modes
    • Strobe: Up to 300mA
    • Precharge: With POK Indicator
    • Movie: Up to 100mA
    • Shutdown: 0.01µA (typ) Quiescent Current
  • Input Current Limiting
    • 1A (MAX1583X)
    • 500mA (MAX1583Y)
    • 250mA (MAX1583Z)
  • Small External Components
  • 2.6V to 5.5V Input Range
  • 24V Output Overvoltage Protection
  • 80% Efficient (PLED / PIN) Movie Mode
  • Thermal-Shutdown Protection
  • 10-Pin 3mm x 3mm TDFN Package
MAX1583: Typical Operating Circuit
MAX1583: Typical Operating Circuit
  • Camera Flashes/Strobes
  • Cell Phones/Smartphones
  • PDAs and Digital Still Cameras
titleDownload file
MAX1583 Data SheetMAX1583.pdf
Part NumberBattery InputRegulation TopologyMax. No. of LEDsLED ChannelsLED ConfigurationILED per Channel
Dimming ControlVCURR_SENSE
LED String Volt.
Oper. Freq.
maxminmaxmaxmaxSee Notes
MAX15831-Cell Li+Inductor Based51Series0.3Analog
60062.65.52.5241000TDFN-EP/10$1.82 @1k
Design kits & evaluation modules
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Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1583XETB+TActiveTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CLead Free
MAX1583XETB-TNo Longer AvailableMAX1583XETB+TTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CNo
MAX1583YETB+TNo Longer AvailableTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CLead Free
MAX1583YETB-TNo Longer AvailableTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CNo
MAX1583ZETB+TActiveTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CLead Free
MAX1583ZETB-TNo Longer AvailableMAX1583ZETB+TTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CNo
MAX1583.pdf MAX1583
MAX1583.pdf MAX1583